Refactored the event bloc to listen for updates in the media list instead of fetching them once

lib/src/blocs/event_bloc.dart

@@ -123,7 +123,13 @@ class EventBloc {
   /// Fetches the paths of all the images linked to this event.
   Future<void> fetchImagesPaths() async {
     await _ready;
-    _imagesPaths.sink.add(_event.media);
+    _firestore.getEventObservable(_user.id, _event.id).transform(
+      StreamTransformer<EventModel, List<String>>.fromHandlers(
+        handleData: (event, sink) {
+          sink.add(event.media);
+        },
+      ),
+    ).pipe(_imagesPaths);
   }
 
   /// Marks a task as done in the database.

lib/src/screens/event_screen.dart

@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter/material.dart';
-import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 
 import '../utils.dart' show getImageThumbnailPath;
 import '../blocs/event_bloc.dart';